Apparatus for Emergency Communications Using Dual Satellite Communications Systems in a Compact Housing

1. An emergency communications beacon, comprising: a first satellite communications transmitter, a second satellite communications transmitter, a first microprocessor and a second microprocessor; a shared section comprising an antenna system, said antenna system comprising a first antenna for said first satellite communications transmitter, and a second antenna for said second satellite communications transmitter; wherein said first microprocessor controls said first transmitter and said second microprocessor controls said second transmitter; wherein said first transmitter is configured to communicate over a first satellite communications system by way of said first antenna and said second transmitter is configured to communicate over a second satellite communications system by said second antenna; wherein said first and second microprocessors are interconnected to permit data transfer therebetween.

2. The beacon of claim 1 , wherein said second microprocessor is configured to receive data from said second satellite communications systems, over said second transmitter, and transfer said data to said first microprocessor.

3. The beacon of claim 1 , wherein said first microprocessor is configured to transmit and receive data from said second satellite communications systems by way of said second microprocessor.

4. The beacon of claim 3 , wherein said data comprises identity information of said first transmitter.

5. The beacon of claim 1 , wherein said first and second satellite communications systems are in bi-directional communication by way of an interface system; and wherein said first satellite communications system can transmit data to said beacon over said second satellite communications system by way of said interface system.

6. The system of claim 1 , wherein said first satellite communications system comprises a Cospas-Sarsat satellite system and said first antenna operates within a range of 406.0-406.1 Mhz.

7. The system of claim 1 , wherein said second satellite communications system comprises a commercial satellite communications system and said second antenna operates within a range of 1.161 Ghz-1.162 Ghz.

8. The system of claim 7 , wherein said commercial satellite communications system comprises the Iridium satellite communications system.

9. The system of claim 1 , wherein said first transmitter comprises a Cospas-Sarsat transmitter and said second transmitter comprises Satellite Emergency Notification Device (SEND) transmitter.

10. The system of claim 1 , wherein said beacon further includes a global positioning receiver.